Øs Varme 5470572 is a Modbus gateway that exposes the ØS heating-control range to third-party building-management systems. It translates between the manufacturer's internal signalling and standard Modbus RTU/TCP registers so that temperatures, alarms and set-points can be read and written by an external controller. Typical service is integrating outdoor snow-melt and floor-heating controls into a wider BMS or SCADA installation.